Devices, systems, and methods for obtaining a tissue sample using a biopsy tool
First Claim
1. A biopsy assembly comprising:
- a biopsy catheter having a proximal portion and a distal portion;
a navigation catheter configured to receive the biopsy catheter for positioning the biopsy catheter adjacent target tissue;
a coring component including;
a distal portion formed of two or more distally extending spiral blades disposed radially around a longitudinal center of the coring component;
a spiral slit defined between two spiral edges of two adjacent blades of the two or more distally extending blades; and
a proximal portion being coupled to the distal portion of the biopsy catheter,wherein the two or more blades are configured to penetrate the target tissue and sever a tissue sample from the target tissue, andwherein the spiral slit is configured to enable movement of the two or more distally extending blades towards the longitudinal center of the coring component to reduce a diameter of the distal portion of the coring component when the coring component is retracted from the target tissue; and
an anchor to anchor the biopsy catheter to the target tissue.
2 Assignments
0 Petitions
Accused Products
Abstract
A biopsy assembly including a biopsy catheter having a proximal portion and a distal portion, a navigation catheter configured to receive the biopsy catheter for positioning the biopsy catheter adjacent target tissue, wherein the biopsy catheter is configured to be received within the navigation catheter, a coring component, and an anchoring component configured to anchor the biopsy catheter to target tissue. The coring component includes a proximal region and a distal region, the distal region formed of one or more distally extending blades and the proximal region being coupled to the distal portion of the biopsy catheter and the one or more blades are configured to penetrate target tissue and sever a tissue sample from the target tissue.
38 Citations
20 Claims
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1. A biopsy assembly comprising:
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a biopsy catheter having a proximal portion and a distal portion; a navigation catheter configured to receive the biopsy catheter for positioning the biopsy catheter adjacent target tissue; a coring component including; a distal portion formed of two or more distally extending spiral blades disposed radially around a longitudinal center of the coring component; a spiral slit defined between two spiral edges of two adjacent blades of the two or more distally extending blades; and a proximal portion being coupled to the distal portion of the biopsy catheter, wherein the two or more blades are configured to penetrate the target tissue and sever a tissue sample from the target tissue, and wherein the spiral slit is configured to enable movement of the two or more distally extending blades towards the longitudinal center of the coring component to reduce a diameter of the distal portion of the coring component when the coring component is retracted from the target tissue; and an anchor to anchor the biopsy catheter to the target tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A biopsy assembly comprising:
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a navigation catheter; and a biopsy catheter configured to be received within the navigation catheter for positioning the biopsy catheter adjacent target tissue and having a coring component, the coring component including; a distal portion formed of two or more distally extending spiral blades disposed radially around a longitudinal center of the coring component; and a spiral slit defined between two spiral edges of two adjacent blades of the two or more distally extending blades, wherein the spiral slit is configured to enable movement of the two or more distally extending blades towards the longitudinal center of the coring component to reduce a diameter of the distal portion of the coring component when the coring component is retracted from the target tissue. - View Dependent Claims (18)
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19. A biopsy assembly comprising:
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a navigation catheter; and a biopsy catheter configured to be received within the navigation catheter for positioning the biopsy catheter adjacent target tissue and having a coring component, the coring component including; a proximal portion defining a first longitudinally extending row of slits and a second longitudinally extending row of slits offset relative to the first longitudinally extending row of slits configured to provide the coring component flexibility to deflect in at least one direction; and a distal portion formed of two or more distally extending spiral blades disposed radially around a longitudinal center of the coring component, the distal portion including a slit defined between two edges of two adjacent spiral blades of the two or more distally extending spiral blades to enable movement of the two or more distally extending spiral blades towards the longitudinal center of the coring component to reduce a diameter of the distal portion of the coring component when the coring component is retracted from the target tissue. - View Dependent Claims (20)
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Specification